Lever handle HS10 bushing black

Lever handles in the HS10 series are comfortable handles in PA6 with a molded in threaded brass bushing. The handle is screwed onto levers, knobs and clamping screws; it turns a cold steel lever into something the hand actually wants to hold through a whole shift. The series is a proven standard choice for machine builders who would rather put a finished part in the bill of materials than draw one of their own.

The brass bushing is the most important detail of the series. The threads sit in metal instead of directly in the plastic, and that shows over time: threads cut in plastic wear and creep when they are tightened again and again, while a brass thread takes repeated tightening year after year without losing its fit. Brass also does not seize against a steel thread even after a long time in a damp environment, so the handle can always be unscrewed.

The nylon around the bushing does the rest of the job. PA6 is tough and impact resistant, the surface is matte and gives a good grip even with gloves, and the material insulates against both heat and cold; a lever at a hot machine or in a cold room can be handled without thinking about it. The weight is low, which matters on levers that have to swing quickly.

The series spans four lengths, 39, 58, 70 and 84 mm, with threads from M5 up to M12; ten versions in total. The smallest handle at 39 mm has a diameter of 16 mm and is threaded M5 or M6, the one at 58 mm has a diameter of 21 mm with an M8 thread, and the longer ones at 70 and 84 mm take threads up to M12. All versions are black.

You find the use in every workshop: clamping handles on fixtures and jigs, control levers on lathes and milling machines of older design, actuators, valve levers and gear levers on carts. The handle is a classic wear part; after many years of use it is replaced in a few minutes and the lever feels like new. In many cases the original is still in place since the machine was delivered in the eighties.

Mounting is as simple as it looks. Screw the handle onto the threaded stud until it bottoms out. On vibrating equipment a drop of thread locker can be wise, otherwise hand force is plenty. If the handle has to point in a certain direction when tightened, solve it with a thin washer or by adjusting the length of the stud. The threads are metric standard, nothing else.

Thread depth is worth an extra look when you choose a version. The stud should go close to the bottom of the thread for the handle to sit stiffly, and the depth varies through the series; the smallest version has a thread depth of 10 mm while the 58 version has 25 mm. Measure the stud and compare with the data sheet before you order, it takes ten seconds.

The rest of the size choice is about force and hand. The longer versions with a coarser thread give more to hold on to and suit levers that are pulled with force, while the shorter ones are enough for fine adjustment and lighter operation. The torque you can put on the lever grows with the size of the grip, plain and simple. If several levers sit next to each other on the same panel it is both best looking and most ergonomic to stay with one and the same size all the way through.

The pack quantity is 250 for the smaller versions, a level suited to machine builders and maintenance departments.

Not sure which thread dimension you need? Call us and we will get you started.